Fans, however, shouldn't place their bets on a full-fledged reunion just yet.

PEOPLE has learned that although Grammer and Maloof were indeed at Kyle's annual White Party as guests while the show was filming, there are no plans to have them back on RHOBH in any full capacity. (Photos of the duo's appearance at the party were posted on Instagram.)

Grammer, 45, brought plenty of drama early in the series: Cameras rolled as her marriage to Frasier actor Kelsey Grammer crumbled amid a cheating scandal. But she left RHOBH after season 2, appearing in a recurring role on season 3.

Maloof, 52, had an infamously explosive exit after season 3, engaging in a bitter war of words with Vanderpump, 53.